How to change tge drill bits on a Challenge 14.4v drill

This is a very easy fix - you have a quick change chuck on this tool. Turn the chuck counter-clockwise and pull it straight off - the new one goes on the same way. Quick Change Bit Chuck

grasp the part below where the bit goes in and slide it down [towards the trigger] - drop in bit and release

Stick the speed fix to 1, put drill in reverse, and hold on to the chuck as hard as you can, and squeeze the trigger.

Look at eReplacementParts.com and the parts diagrams

where the bit goes into the drill there is a metal ring. Pull the metal ring away from the drill with one hand and pull the bit out. this model you may have to pull the meteal ring twards the body of the drill.

have you opened up the chuck to remove the drill ? If not then you need to by holding the chuck tightly with your hand and then run the drill in reverse. hope this helps you

I would replace the chuck or purchase a 1/16" quick change drill bit.

there is a rippled edge close to the very tip of the drill and there is a key supplied with the drill with the corresponding ripples place key into the hole near tip of drill so ripples meet each other and turn key in an anticlockwise direction to loosen put in new drill bit re tighten in clockwise direction hope this helps if not please ask for more info glenn